void DLLEXPORT reopen_bcast_socket()
{
    if( BCASTSocket != INVALID_SOCKET ) {
        closesocket(BCASTSocket);
    }
    if( (BCASTSocket = socket(AF_INET, SOCK_DGRAM, 0)) != INVALID_SOCKET ) {
        BOOL bVal = TRUE;
        if( setsockopt(BCASTSocket, SOL_SOCKET, SO_BROADCAST, (const char*)&bVal, sizeof(bVal)) == SOCKET_ERROR ||
            setsockopt(BCASTSocket, SOL_SOCKET, SO_REUSEADDR, (const char*)&bVal, sizeof(bVal)) == SOCKET_ERROR ) {
            closesocket(BCASTSocket);
            BCASTSocket = INVALID_SOCKET;
        } else {
            struct sockaddr_in local;
            local.sin_family = AF_INET;
            local.sin_addr.S_un.S_addr = htonl(bBCastFilterIP ? INADDR_LOOPBACK : INADDR_ANY);
            local.sin_port = htons(wBCastUdpPort);
            if( bind(BCASTSocket, (const sockaddr*)&local, sizeof(local)) == SOCKET_ERROR ) {
                closesocket(BCASTSocket);
                BCASTSocket = INVALID_SOCKET;
            }
        }
    }
}

void broadcast_command(char *arg)
{
    if( BCASTSocket == INVALID_SOCKET ) {
        /* ... */
    } else {
        /* ... */
        struct sockaddr_in local;

        local.sin_family = AF_INET;
        local.sin_addr.S_un.S_addr = htonl(INADDR_BROADCAST);
        local.sin_port = htons(wBCastUdpPort);

        int len = strlen(result), sent;
        sent = sendto(BCASTSocket, result, len, 0, (const sockaddr*)&local, sizeof(local));
        if(sent != len) {
            /* ... */
        }
    }
}